<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="css_learing.css" type="text/css"/>
</head>
<body>
<h1>测试1</h1>
<br>
<h2>测试1</h2>
<br>
<h3>测试1</h3>
<br>
<h4>测试1</h4>
<br>
<p>测试1</p>
<p>
<ol>
    <li><strong>我是斜体字。因为strong元素位于li中</strong></li>
    <li>我不是斜体字。因为strong元素位于li中</li>
</ol>
</p>
<div id="read">
    这是一个测试id css样式
</div>
<div class="center">
    This heading will be center-aligned
</div>
<div class="fancy">
    <p>
    this is a test
    </p>
</div>
<table border="1" cellspacing="10px" cellpadding="10px">
    <td class="fancy">我们</td>
    <td >你们</td>

</table>
<div>
    <h4 title="hello">hello world</h4>
    <h4>hello world</h4>
    <h5 title="world">title</h5>
    <h5 title="hello world">title</h5>
    <h5 lang="en">test 1</h5>
    <h5 lang="us">test 2</h5>
</div>

</body>


</html>